CN111687567A - Welding process for precision parts - Google Patents
Welding process for precision parts Download PDFInfo
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- CN111687567A CN111687567A CN202010552058.2A CN202010552058A CN111687567A CN 111687567 A CN111687567 A CN 111687567A CN 202010552058 A CN202010552058 A CN 202010552058A CN 111687567 A CN111687567 A CN 111687567A
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- parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Arc Welding In General (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The invention discloses a welding process of precision parts, which comprises the following steps: s1: deburring: removing processing burrs on the surface of the part; s2: cleaning: cleaning the parts subjected to deburring; s3: drying: drying the cleaned parts; s4: positioning: positioning the parts; s5: spraying soldering flux: spraying soldering flux on the welding part of the part; s6: preheating treatment: heating the parts to ensure the constant temperature of the parts; s7: spot welding: pre-welding the parts by adopting a spot welding mode; s8: and (3) size detection: detecting whether the connection size of the welded parts has deviation; s9: and (3) overall welding: completely welding the spot-welded parts; s10: and (6) heat treatment. According to the invention, the temperature of the parts is ensured to be constant through preheating treatment, so that the problem that the precision of the parts is influenced by the deformation of the parts caused by temperature difference is avoided.
Description
Technical Field
The invention relates to the technical field of welding of precision parts, in particular to a welding process of precision parts.
Background
Welding, also known as fusion, welding, is a manufacturing process and technique for joining metals or other thermoplastic materials, such as plastics, in a heated, high temperature or high pressure manner, modern welding uses a wide variety of energy sources, including gas flame, electric arc, laser, electron beam, friction, ultrasonic, etc., and welding is used in a wide variety of applications, particularly in the machining of precision parts.
The precision part is very high in precision requirement on the precision part due to the special working scene, the metal part is usually required to be welded, and in the welding process, the local temperature of the welding position is high, so that the precision part deforms due to the temperature difference, the precision of the precision part is reduced, and the quality of the precision part is influenced.
Disclosure of Invention
The invention aims to provide a welding process of a precision part, and aims to solve the problems that in the prior art, the local temperature of a welding part is high, the precision part is deformed due to temperature difference, the precision of the precision part is reduced, and the quality of the precision part is influenced.
In order to achieve the purpose, the invention provides the following technical scheme: a welding process of precision parts comprises the following steps: s1: deburring: removing processing burrs on the surface of the part; s2: cleaning: cleaning the parts subjected to deburring; s3: drying: drying the cleaned parts; s4: positioning: positioning the parts; s5: spraying soldering flux: spraying soldering flux on the welding part of the part; s6: preheating treatment: heating the parts to ensure the constant temperature of the parts; s7: spot welding: pre-welding the parts by adopting a spot welding mode; s8: and (3) size detection: detecting whether the connection size of the welded parts has deviation; s9: and (3) overall welding: completely welding the spot-welded parts; s10: and (6) heat treatment.
Preferably, the cleaning in step S2 includes degreasing and removing oxide.
Preferably, the degreasing agent is used for removing oil stains on the surface of the part, the oxide removal agent is used for removing oxides on the surface of the part by using alkaline liquid and acidic liquid, and the cleaning further comprises clean water cleaning, namely after the oil stains and the oxides are removed, the part is cleaned by the clean water.
Preferably, the drying in step S3 is to dry the components by using an oven, and the drying temperature is controlled at 130-140 ℃.
Preferably, the positioning in step S4 is performed by clamping and positioning the component by using a fully automatic positioning device.
Preferably, the step S5 of spraying the flux can place the soldering site of the component in the flux, and wipe the solder resist except the soldering site after the soldering site of the component is completely wetted by the solder resist.
Preferably, the preheating treatment in step S6 is to control the temperature of the components at 65-75 ℃.
Preferably, in step S7, the spot welding is performed on the outer side of the welded portion of the component, and the spot welding positions are staggered.
Preferably, the full-face welding in step S9 is performed in a region other than spot welding.
Compared with the prior art, the invention has the beneficial effects that:
1. the surface of the part can be prevented from being damaged by the washed burrs during cleaning through the pre-deburring, so that the precision of the part is ensured;
2. the oil stains and oxides on the surfaces of the parts are removed by cleaning the surfaces of the parts, so that the influence of the oil stains and the oxides on the surfaces on welding is avoided, and the connection tightness of the welding positions is ensured;
3. the temperature of the parts is ensured to be constant through preheating treatment, so that the problem that the precision of the parts is influenced by the deformation of the parts caused by temperature difference is avoided;
4. spot welding is carried out firstly, and then all-round welding is carried out, so that welded parts have better welding seams and higher precision; and the strength after welding can be ensured by adopting heat treatment after welding.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart of a first embodiment of the present invention.
Fig. 2 is a flowchart of a second embodiment of the present invention.
Fig. 3 is a flowchart of a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example one
Referring to fig. 1, in an embodiment of the present invention, a welding process for precision parts includes the following steps: s1: deburring: removing processing burrs on the surface of the part; s2: cleaning: cleaning the parts subjected to deburring; s3: drying: drying the cleaned parts; s4: positioning: positioning the parts; s5: spraying soldering flux: spraying soldering flux on the welding part of the part; s6: preheating treatment: heating the parts to ensure the constant temperature of the parts; s7: spot welding: pre-welding the parts by adopting a spot welding mode; s8: and (3) size detection: detecting whether the connection size of the welded parts has deviation; s9: and (3) overall welding: completely welding the spot-welded parts; s10: and (6) heat treatment.
Preferably, the cleaning in step S2 includes degreasing and removing oxide.
Preferably, the degreasing agent is used for removing oil stains on the surface of the part, the oxide removal agent is used for removing oxides on the surface of the part by using alkaline liquid and acidic liquid, and the cleaning further comprises clean water cleaning, namely after the oil stains and the oxides are removed, the part is cleaned by the clean water.
Preferably, the drying in step S3 is to dry the components by using an oven, and the drying temperature is controlled at 130-140 ℃.
Preferably, the positioning in step S4 is performed by clamping and positioning the component by using a fully automatic positioning device.
Preferably, the step S5 of spraying the flux can place the soldering site of the component in the flux, and wipe the solder resist except the soldering site after the soldering site of the component is completely wetted by the solder resist.
Preferably, the preheating treatment in step S6 is to control the temperature of the components at 65-75 ℃.
Preferably, in step S7, the spot welding is performed on the outer side of the welded portion of the component, and the spot welding positions are staggered.
Preferably, the full-face welding in step S9 is performed in a region other than spot welding.
The working principle of the invention is as follows: s1: deburring: removing processing burrs on the surface of the part; s2: cleaning: cleaning the parts subjected to deburring; s3: drying: drying the cleaned parts; s4: positioning: positioning the parts; s5: spraying soldering flux: spraying soldering flux on the welding part of the part; s6: preheating treatment: heating the parts to ensure the constant temperature of the parts; s7: spot welding: pre-welding the parts by adopting a spot welding mode; s8: and (3) size detection: detecting whether the connection size of the welded parts has deviation; s9: and (3) overall welding: completely welding the spot-welded parts; s10: heat treatment; the surface of the part can be prevented from being damaged by the washed burrs during cleaning through the pre-deburring, so that the precision of the part is ensured; the surface of the part is cleaned, and the surface of the part is prevented from being damaged by the cleaned burrs in the cleaning process through the pre-deburring, so that the precision of the part is ensured; oil stains and oxides on the surfaces of the parts are removed, so that the influence of the oil stains and the oxides on the surfaces on welding is avoided, and the connection tightness of the welding positions is ensured; the temperature of the parts is ensured to be constant through preheating treatment, so that the problem that the precision of the parts is influenced by the deformation of the parts caused by temperature difference is avoided; spot welding is carried out firstly, and then all-round welding is carried out, so that welded parts have better welding seams and higher precision; and the strength after welding can be ensured by adopting heat treatment after welding.
Example two
Referring to fig. 2, in an embodiment of the present invention, a welding process for precision parts includes the following steps: s1: deburring: removing processing burrs on the surface of the part; s2: cleaning: cleaning the parts subjected to deburring; s3: drying: drying the cleaned parts; s4: positioning: positioning the parts; s5: spraying soldering flux: spraying soldering flux on the welding part of the part; s6: preheating treatment: heating the parts to ensure the constant temperature of the parts; s7: spot welding: pre-welding the parts by adopting a spot welding mode; s8: and (3) size detection: detecting whether the connection size of the welded parts has deviation; s9: and (3) overall welding: and completely welding the spot-welded parts.
Preferably, the cleaning in step S2 includes degreasing and removing oxide.
Preferably, the degreasing agent is used for removing oil stains on the surface of the part, the oxide removal agent is used for removing oxides on the surface of the part by using alkaline liquid and acidic liquid, and the cleaning further comprises clean water cleaning, namely after the oil stains and the oxides are removed, the part is cleaned by the clean water.
Preferably, the drying in step S3 is to dry the components by using an oven, and the drying temperature is controlled at 130-140 ℃.
Preferably, the positioning in step S4 is performed by clamping and positioning the component by using a fully automatic positioning device.
Preferably, the step S5 of spraying the flux can place the soldering site of the component in the flux, and wipe the solder resist except the soldering site after the soldering site of the component is completely wetted by the solder resist.
Preferably, the preheating treatment in step S6 is to control the temperature of the components at 65-75 ℃.
Preferably, in step S7, the spot welding is performed on the outer side of the welded portion of the component, and the spot welding positions are staggered.
Preferably, the full-face welding in step S9 is performed in a region other than spot welding.
The working principle of the invention is as follows: s1: deburring: removing processing burrs on the surface of the part; s2: cleaning: cleaning the parts subjected to deburring; s3: drying: drying the cleaned parts; s4: positioning: positioning the parts; s5: spraying soldering flux: spraying soldering flux on the welding part of the part; s6: preheating treatment: heating the parts to ensure the constant temperature of the parts; s7: spot welding: pre-welding the parts by adopting a spot welding mode; s8: and (3) size detection: detecting whether the connection size of the welded parts has deviation; s9: and (3) overall welding: completely welding the spot-welded parts; the surface of the part can be prevented from being damaged by the washed burrs during cleaning through the pre-deburring, so that the precision of the part is ensured; oil stains and oxides on the surfaces of the parts are removed, so that the influence of the oil stains and the oxides on the surfaces on welding is avoided, and the connection tightness of the welding positions is ensured; the temperature of the parts is ensured to be constant through preheating treatment, so that the problem that the precision of the parts is influenced by the deformation of the parts caused by temperature difference is avoided; the spot welding is firstly carried out, the comprehensive welding is carried out, and welded parts have better welding seams and higher precision.
EXAMPLE III
Referring to fig. 3, in an embodiment of the present invention, a welding process for precision parts includes the following steps: s1: deburring: removing processing burrs on the surface of the part; s2: cleaning: cleaning the parts subjected to deburring; s3: drying: drying the cleaned parts; s4: positioning: positioning the parts; s5: spraying soldering flux: spraying soldering flux on the welding part of the part; s6: preheating treatment: heating the parts to ensure the constant temperature of the parts; s7: and (3) overall welding: completely welding the spot-welded parts; s8: and (6) heat treatment.
Preferably, the cleaning in step S2 includes degreasing and removing oxide.
Preferably, the degreasing agent is used for removing oil stains on the surface of the part, the oxide removal agent is used for removing oxides on the surface of the part by using alkaline liquid and acidic liquid, and the cleaning further comprises clean water cleaning, namely after the oil stains and the oxides are removed, the part is cleaned by the clean water.
Preferably, the drying in step S3 is to dry the components by using an oven, and the drying temperature is controlled at 130-140 ℃.
Preferably, the positioning in step S4 is performed by clamping and positioning the component by using a fully automatic positioning device.
Preferably, the step S5 of spraying the flux can place the soldering site of the component in the flux, and wipe the solder resist except the soldering site after the soldering site of the component is completely wetted by the solder resist.
Preferably, the preheating treatment in step S6 is to control the temperature of the components at 65-75 ℃.
The working principle of the invention is as follows: s1: deburring: removing processing burrs on the surface of the part; s2: cleaning: cleaning the parts subjected to deburring; s3: drying: drying the cleaned parts; s4: positioning: positioning the parts; s5: spraying soldering flux: spraying soldering flux on the welding part of the part; s6: preheating treatment: heating the parts to ensure the constant temperature of the parts; s7: and (3) overall welding: completely welding the spot-welded parts; s8: heat treatment; the surface of the part can be prevented from being damaged by the washed burrs during cleaning through the pre-deburring, so that the precision of the part is ensured; oil stains and oxides on the surfaces of the parts are removed, so that the influence of the oil stains and the oxides on the surfaces on welding is avoided, and the connection tightness of the welding positions is ensured; the temperature of the parts is ensured to be constant through preheating treatment, so that the problem that the precision of the parts is influenced by the deformation of the parts caused by temperature difference is avoided; and the strength after welding can be ensured by adopting heat treatment after welding.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A welding process of precision parts is characterized in that: the method comprises the following steps:
s1: deburring: removing processing burrs on the surface of the part;
s2: cleaning: cleaning the parts subjected to deburring;
s3: drying: drying the cleaned parts;
s4: positioning: positioning the parts;
s5: spraying soldering flux: spraying soldering flux on the welding part of the part;
s6: preheating treatment: heating the parts to ensure the constant temperature of the parts;
s7: spot welding: pre-welding the parts by adopting a spot welding mode;
s8: and (3) size detection: detecting whether the connection size of the welded parts has deviation;
s9: and (3) overall welding: completely welding the spot-welded parts;
s10: and (6) heat treatment.
2. The process for welding precision parts according to claim 1, wherein: the cleaning in step S2 includes degreasing and oxide removal.
3. The process for welding precision parts according to claim 2, wherein: the degreasing method comprises the following steps of degreasing, removing oil stains on the surfaces of the parts by using a degreasing agent, removing oxides on the surfaces of the parts by using alkaline liquid and acidic liquid, and cleaning by using clear water, namely cleaning the parts by using the clear water after removing the oil stains and the oxides.
4. The process for welding precision parts according to claim 1, wherein: in the step S3, the drying is performed by using an oven to dry the components, and the drying temperature is controlled at 130-140 ℃.
5. The process for welding precision parts according to claim 1, wherein: in the step S4, the positioning is performed by clamping and positioning the component by using a full-automatic positioning device.
6. The process for welding precision parts according to claim 1, wherein: the step S5 of spraying the flux can place the soldering portion of the component in the flux, and wipe the solder resist outside the soldering portion after the soldering portion of the component is completely wetted by the solder resist.
7. The process for welding precision parts according to claim 1, wherein: in the preheating treatment in step S6, the temperature of the parts is controlled to be 65-75 ℃.
8. The process for welding precision parts according to claim 1, wherein: in step S7, the spot welding is performed on the outer side of the welded portion of the component, and the spot welding positions are staggered.
9. The process for welding precision parts according to claim 1 or 8, wherein: the full-surface welding in step S9 is performed in a region other than spot welding.
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| CN202010552058.2A CN111687567A (en) | 2020-06-17 | 2020-06-17 | Welding process for precision parts |
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| CN202010552058.2A CN111687567A (en) | 2020-06-17 | 2020-06-17 | Welding process for precision parts |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247491A (en) * | 2020-10-23 | 2021-01-22 | 苏州航菱微精密组件有限公司 | Chip packaging detection equipment rack processing and welding method |
| CN112894131A (en) * | 2021-01-15 | 2021-06-04 | 滁州美杰精密部件制造有限公司 | Welding process for chassis assembly production |
| CN113770658A (en) * | 2021-09-26 | 2021-12-10 | 云南大泽电极科技股份有限公司 | Production process of cathode plate cross beam for electrolytic zinc |
| CN114713947A (en) * | 2022-03-08 | 2022-07-08 | 深圳数码模汽车技术有限公司 | Automobile part welding method with low welding deformation |
| CN117359162A (en) * | 2023-11-01 | 2024-01-09 | 山东成富复合材料有限公司 | Stainless steel composite board welding equipment and welding process thereof |
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| CN114713947A (en) * | 2022-03-08 | 2022-07-08 | 深圳数码模汽车技术有限公司 | Automobile part welding method with low welding deformation |
| CN117359162A (en) * | 2023-11-01 | 2024-01-09 | 山东成富复合材料有限公司 | Stainless steel composite board welding equipment and welding process thereof |
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Application publication date: 20200922 |